Horticulture MCQ Question and Answer | Agriculture MCQ Question

Browning in cauliflower is corrected by boric acid.
Browning is a common problem in cauliflower. In this the stem becomes hollow and the curd becomes brown. Affected curds develop a bitter taste. Browning occurs because of the deficiency of boron.
This condition may be controlled by the application of borax or sodium borate (boric acid) @ 20 kg per hectare. In case of acute deficiency, spray of 0.25 to 0.50% solution of borax @ 1 - 2 kg/ac will give satisfactory results.

The sweetest sugar in fruit is fructose.
Fructose is also known as “fruit sugar” because it primarily occurs naturally in many fruits. It also occurs naturally in other plant foods such as honey, sugar beets, sugar cane and vegetables. Fructose is the sweetest naturally occurring carbohydrate and is 1.2 - 1.8 times sweeter than sucrose (table sugar).

The art of training plants into different shapes of birds, domes, animals, umbrellas etc. is known as Topiary.
It is the horticultural practice of training perennial plants by clipping the foliage and twigs of trees, shrubs and subshrubs to develop and maintain clearly defined shapes, whether geometric or fanciful.
The plants used in the topiary are evergreen, mostly woody, have small leaves or needles, produce dense foliage, and have compact and/or columnar growth habits. The plant should be amenable to repeated pruning and also flexible with more vegetative growth.

The medicinal plant known as "Second shilajeet" is safed museli.
Safed museli is a rare herb from India. It is used in traditional systems of medicine including Ayurveda, Unani, and homeopathy. People use safed museli for athletic performance, obesity, erectile dysfunction (ED), and other conditions.

Pungency in onion is due to Allyl propyl disulphide.
Pungency is largely due to the level of sulphur - based non-protein amino acids they contain. Pungency is basically due to the presence of a volatile oil - allyl-propyl-disulphide. It is formed by an enzymatic reaction when tissues are broken.
Although measurement of these elements can be difficult, it is well known that good nutrition is essential to managing the taste and pungency of onion bulbs.

Seed coat-related dormancy is observed in Ber, Walnuts as well as Guava.
Seeds with seed coat dormancy can remain on/in the ground without germinating until the seed coat allows water and oxygen to enter the seed or eliminate the inhibiting chemicals.
Exogenous dormancy is when the seed coat is too durable for moisture to infiltrate, effectively preventing germination. Endogenous dormancy occurs due to chemical changes within the seed's embryo.

Botanical Name of Long melon is Cucumis melo var utillissimus.
It is a species of Cucumis that has been developed into many cultivated varieties. The fruit is a pepo. The flesh is either sweet or bland, with or without a musky aroma, and the rind can be smooth, ribbed, wrinkled, or netted.
The melon is an annual, trailing herb. It grows well in subtropical or warm, temperate climates. Melons prefer warm, well-fertilized soil with good drainage that is rich in nutrients but are vulnerable to downy mildew and anthracnose.

For biological control of tomato fruit borer, the ideal trap crop is Marigold.
In tomato marigold or cucumber is commonly used as a trap crop for every 15 rows of the main crop to attract tomato fruit borer. Marigold is a potential trap crop in potato and rice against nematodes and snails, respectively.
Fruit borer is a serious pest of tomato as it reduces yield by up to 40%. The young are greenish to brown, with dark lines about the size of half of the finger. Adult females are yellow moths with dark brown spots on their wings. Larvae feed on the leaves and later make holes in the fruit which can be up to the size of a pea.

Iron deficiency in the plant is characterized by the Yellowing of new leaves.
The distinctive symptom of iron deficiency is the chlorosis of the youngest leaves. As chlorosis is a result of photobleaching, leaves in bright sunlight will be more affected than those in shade.
Initially, yellow interveinal chlorosis develops, which is characterized by a sharply contrasting green network of veins. Iron is needed to produce chlorophyll, hence its deficiency causes chlorosis.

International Water Management Institute (IWMI) is located in Sri Lanka.
The International Water Management Institute (IWMI) is a non-profit, scientific research organization focusing on the sustainable use of water and land resources in developing countries. It is headquartered in Colombo, Sri Lanka, with regional offices across Asia and Africa.
It focuses on improving how water and land resources are managed, to underpin food security and reduce poverty while safeguarding the environment.